Description:

Modern neutrino experiments, including T2(H)K, DUNE, and the SBN program at Fermilab, use intense neutrino beams created in particle accelerators to measure oscillation parameters.The neutrinos are detected by measuring particles created in their rare interaction with matter in massive detectors. To properly interpret experimental observables and connect these to the neutrino energy spectrum, an understanding of the neutrino-nucleus interaction is necessary.

I will discuss the impact of modeling of the neutrino interactions, and the challenges this poses for nuclear and hadronic theory. I will discuss uncertainties due to model dependence in predictions of the relative interaction rates for muon and electron (anti-)neutrinos, which are important for measurements of e.g. CP violation.

I will present recent progress in the description of nucleon knockout in neutrino interactions, and discuss how the measurements of the hadronic final-state obtained in liquid argon detectors present a unique challenge for nuclear theory.

Alexis Nikolakopoulos, Fermilab

Host: Innes Bigaran